Antiskidding device fob automobiles



H. E. DANIELS.

ANTISKIDDING DEVICE FOR AUTOMOBILES, &c.

APPLICATION FlLED JUNE 4, 1919.

Patented Feb. 10, 1920'.

3 SHEETSSHEET I.

S Kw m 4 m 1 U w ATTORNEY.

H. E. DANIELS.

ANTISKIDD NG DEVICE FOR AUTOMOBILES, 8L0.

APPLICATION FILED JUNE 4- 1919.

1,330,]. 10. Patented Feb. 10, 1920.

3 SHEETS-SHEET 2.

I I l I I l I N VEN TOR.

-H. E. DANIELS.

ANTISKIDDING DEVICE FOR AUTOMOBILES, m.

APPLICATION FILED JUNE4, 1919.

3 SHEETSSHEET 3.

Patented Feb. 10, 1920.

BY ATTORNEY.

nanny E. DANIELS, on ransno; CALIFORNIA.-

' ANTISKIDDING DEVICE FOR AUTOMOBILES, 8w.

To'all whom it may concern:

Be it known that I, HARRY .E. DANIELs,a I

citizen of the United States, residing at Fresno, in the county of Fresno and State of California, have invented new and use-- ful Improvements in Antiskidding Devices for Automobiles, &c., of which the followin is a specification.

i lyobject. is to make an -'anti-sk1dd1ng device forautomobiles and the like, and my invention consists of the novel features.

herein shown, described and claimed.

Figure 1 is a diagrammatic top plan view of the frame and running gear of an automobile with an anti-skidding device applied in accordance with the. principles of my invention.

. housing and rear wheel and 1 showingmy I Fig. 5 is an enlarged fragmentary top Fig. 21's an enlarged perspective of one of the bushings for the ax'lehousing.

Fig. 3 is'a rear elevation ofthe rear axle anti-skidding device, section. l Fig. 4 is an enlarged sectional detail on the lines H of Figs. 3 and 5.

part being shown n lan view as seen looking in the direction 'mdicated'by the arrow 5 in Fig. 4.

Fig. 6 is an enlarged sectional detail of the controller valve, the view being taken on the line 66 of Fig. 7 and looking inthe direction indicated by the arrow. I Fig. 7 is a side elevation looking 1n the a direction indicated by the arrow 7 in Fig. 6.

Fig. 8 is a diagram of the anti-skidding device removed from the automobile.

Fig. 9 is a perspective detail of the con-.

troller valve shown in Figs. 6 and 7 7 Referring especially to Fig. 8, the pump 1 is mounted beside the engine 2. The

' shaft 3 is continuously driven by the'engine when the engine is running, and the shaft 3 is connected to the pump 1 by a clutch 4.

The pump 1 pumps air through the pipe 5 to the .';storage tank 6. The piston 7 is mounted in the piston cylinder 8, and the 5 ipe 9 connects the storage tank 6 to the cylinder 8"- at one side of the piston 7.

The piston rod 10 is connected to a lever 11 mounted upon a pivot 12, and one end of the lever 11 is connected to operate the.

' clutch 4.- A retractile coil spring 13 is connected to the other end of the lever and tp the same end of the lever-as thepiston rod 10, so that when the pressuregoes up in-the Specification of Letters Patent.

i Patented Feb. 10, 1920.

Application filed June 4', 1919. Serial No. 301,840. I

tank 6 it willoperate the piston 7 to operate the piston rod-10 to operate the lever 11 and disonnect the clutch 4, and when the pressure goes down in the tank 6 the ten- 's1on of the spring 13 will operate the lever -11 to connect the clutch 4 to operate the pump to pump more air into the tank 6.

g The controller valve 14 is mounted inv a convenient position and the pipe 15 connects the tank 6 to the valve 14. The crank arm 16 is connected to the controller valve 14, and a llnk 17 connects therrank arni 16 to the foot pedal 18. A retractile coil spring 19 is connected ,to the frame and to the pedal 18, the tension of the spring 19 being exerted to hold the pedal in neutral position with the anti-skidding device out of operation.

Piston cylinders 20 and 21 are fixed upon the rear axle, pistons 22 and 23 are mounted in the piston cylinders, piston rods 24 and 25.extend downwardly from the pistons through the heads 26 and 27 in .the piston cylinders, and the anti-skidding shoes 28 and 29 are fixed upon the lower ends of the piston rods 24 and 25.

A, pressure pipe 30 connects the controller valve 14- to the upper heads 31 and 32 of the pistons 20 and 21, and an exhaust pipe .33 connects the heads 31 and 32 to the controller valve 14; sothat when the pedal passes through the pipe 15 to the controller valve 14 and through the pipe 30 .to the j ispuShed forwardly, as shown in full gllnes, the air pressure from the tank 6 upper sides of the pistons 22 and 23 and forces the pistons downwardly -to force the shoes 28 and 29 in contact-with the ground and hold the'automobile or theilike from sklddmg'g and so "that when the pedal -18 swings the pedal tov the normal position shown in dotted lines thereby operating the is released, the tension of the spring-19 valve '14 to shut the pressure off from the pipe 30 and open the pipe 33 and allow the pressure to exhaust from above the pistons. A pressure pipe 34 connects-the controller valve 14 to the lower sides of thepistons 22 and 23, and an exhaust pipe 35 connects the lower sides of the pistons to the controller valve; so that when the pedal 18 is released the controller valve 14 is operated to send the air ressure throughv the pipe 34 to the lower si es of the pistons 22 and 23, and raise the pistons and put the anti-skidding device out. of use; and

so that when the pedal 18 is operated to put the anti-skidding device into use the exhaust pipe 35 is opened to relieve the pressure from below the pistons.

It is intended to carry a substantially constant pressure in-the storage tank 6 of say eighty pounds and to set the pressure regulator consisting of the cylinder 8, piston 10, and spring 13 so as to Jmaintain this pressure.

' Referring to Figs. 6, 7 and 9, the details of the controller'valve 14 are as follows:

The cylindrical casing 36 has a tapered chamber, and the cylindrical tapered valve "plug 37 fits in. this chamber. The pipe 15 is connected to the port 38 in the bottom of I the casing- 36 and the passage 39 leads from the ports 43 and.44 in the casing, and the upper end of the passage- 42 registering with the ports 45 and 46 in the casing.

The exhaust pipe is connected to the port 43 and the exhaust pipe 33 is connected to the port 44, vsou that when the plug 37 is turned to register the passage 39 with the port 40 the compressed air will pass through the pipe 30 to the upper ends of the pistons, and the exhaust fromthe lower ends of the pistons will pass through the pipe-35 to the port 43 and through the passage 42 and outwardly through the port 45, and when the plug 37 is. turned to register the opening 39 with thel port 41 to send the compressed air through the" pipe exhaustfrom the port 46.

34 to the lower sides of the pistons 22 and 23 the exhaust from the u per sides of the pistonswill ass throughtlie pipe 33'to the port 34-and through the passage 42 and Referring to Figs. 2, 3. and 5, thepiston cylinders 20 and 2'1 and the cooperating 49 and 50 forming openings 51 in w ich the. axle housmgffits. The openin I 51 must 'be varied to suit the different ax e housings:

'Slots 52 and 53 extend from'theopenings51 to receive the flanges of the axle housing and hold the bushings from rotating upon 7 the. axle housing. The central ortionsof the members 49 and 50 are roun ed to form the supporting bearings 54, there being.

flanges 55-and 56 at the ends'of the bearing ted to the axle portions 54, and ears 57 and 58'extend and down from the fianges'for clamping the two members together so as to rigidly mount the bushings upon the axle housing.

Bolt holes 59 and 60 are formed through the, clamping ears 57 and 58, and bolts 61 and 62 are inserted through the bolt holes. The piston cylinders 20 and 21 are,formed integral with the half bearings 63 fitting the bearings 54 half way around thebearings 54 and separate half bearings 64 fit the other half way around the bearings 54, and the half bearings 63 and 64 are connected to- I gether by bolts '65. Braces 66 connect the lower ends of the piston cylinders to the frame crossbar 67.

The anti-skidding shoes 28 and 29 are substantially alike and the shoes are flat.

plates 68 having internally screw threaded bosses 69 screwed upon the lower ends of the piston rods 24 and 25 and having upturned forward ends 70. The shoes are of considerable length and form runners which limited extent and will effectually prevent the vehicle from skidding or slowing side- W186. I

will allow the vehicle to Slld8' ahead to a Thus I have produced an anti-skidding device for vehicles comprising a pump connected to be operated intermittently from the engine, apressure regulator forthrowing the pump into and out of operation, a storage tank connected to the pump and to the pres sure regulator, a controller valve connected to the storage tank, a pedal for operating the controller valve, piston cylinders mounted upon the rear axle,pistons in the'piston cylin-- ders, anti-skidding shoes connected to the pistons, and pipe connections between the piston cylinders and the controller valve; so i that by manipulating the pedal the antiskidding shoes may be forced downwardly against the ground, and so that by releasing the pedal the anti-skidding'shoes will "be elevated and held elevated.

' Various changes may-be made without de- I claim; v 1; An anti-skidding device for vehicles comprising. a pump adapted to be connected to the running part of an engine, a pressure regulator for connecting and disconnecting {the pump, a storage tank connected to tlie the rear axle, pistons in the' piston cylinders,

parting from the sp rit of my invention as .claime f 9 parts for operating the anti-skidding shoes 28 and 29 are substantially alike, and the anti-skidding shoes connected to the pistons,

and pipes connectingthe piston' c linders to the controller, valve;,so' that w en the pedal is operated the pistons will beforced downwardly to move the anti skiddin'g shoes downwardly to engage the ground, and so hat when the pedal is released the pistons will be elevated to elevate the anti-skidding comprising i'air'. cylinders adapted to be, mounted upon the vehicle, pistons mounted within the cylinders having downwardly extending rods, anti-skidding shoes carried on the lower ends of the rods and adapted to engage the ground, pressure pipes for ad- 10 mitting air to the cylinders, means for ad mitting air to the pressure pipes, and means for holding the anti-skidding shoes out of engagement with the ground. s

In testimony whereof I have signed my 15 name to this specification.

' HARRY DANIELS. 

